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	<id>https://help18.whiz.me/index.php?action=history&amp;feed=atom&amp;title=File%3ASleep_and_learning_timeline_with_optimization_data.jpg</id>
	<title>File:Sleep and learning timeline with optimization data.jpg - Revision history</title>
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	<updated>2026-06-06T14:44:16Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://help18.whiz.me/index.php?title=File:Sleep_and_learning_timeline_with_optimization_data.jpg&amp;diff=7534&amp;oldid=prev</id>
		<title>SuperMemoHelp at 14:17, 3 April 2016</title>
		<link rel="alternate" type="text/html" href="https://help18.whiz.me/index.php?title=File:Sleep_and_learning_timeline_with_optimization_data.jpg&amp;diff=7534&amp;oldid=prev"/>
		<updated>2016-04-03T14:17:57Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 10:17, 3 April 2016&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Sleep and repetitions timeline displaying repetitions blocks of the current collection (in red) and sleep blocks (in blue) with recomputed circadian approximations on the current data&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;blockquote&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;&#039;&#039;&#039;Figure:&#039;&#039;&#039; &lt;/ins&gt;Sleep and repetitions timeline displaying repetitions blocks of the current &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Glossary:Collection|&lt;/ins&gt;collection&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;]] &lt;/ins&gt;(in &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;span style=&quot;padding: 3px; color: white; background-color: &lt;/ins&gt;red&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;;&quot;&amp;gt;red&amp;lt;/span&amp;gt;&lt;/ins&gt;) and sleep blocks (in &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;span style=&quot;padding: 3px; color: white; background-color: &lt;/ins&gt;blue&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;;&quot;&amp;gt;blue&amp;lt;/span&amp;gt;&lt;/ins&gt;) with recomputed circadian approximations on the current data&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;. &amp;lt;span style=&quot;padding: 3px; color: white; background-color: blue;&quot;&amp;gt;Blue&amp;lt;/span&amp;gt; and &amp;lt;span style=&quot;padding: 3px; color: white; background-color: red;&quot;&amp;gt;red&amp;lt;/span&amp;gt; continuous lines are predictions of optimum sleep time using the SleepChart model (based on sleep statistics). &amp;lt;span style=&quot;padding: 3px; background-color: yellow;&quot;&amp;gt;Yellow continuous line&amp;lt;/span&amp;gt; shows the prediction of the maximum of circadian sleepiness (circadian middle-of-the-night peak) using a phase response curve model. Note that, theoretically, the yellow line should roughly fall into the middle between blue and red lines. However, when a disruption of the sleep pattern is severe, those lines might diverge testifying to the fact that it is very hard to build models that fully match the chaotic behavior of the sleep control system subjected to a major perturbation. &amp;lt;span style=&quot;padding: 3px; border: 2px solid red; background-color: cyan;&quot;&amp;gt;Aqua dots&amp;lt;/span&amp;gt; point to the predicted daytime dip in alertness (i.e. the time when a nap might be most productive).&#039;&#039;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/blockquote&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>SuperMemoHelp</name></author>
	</entry>
	<entry>
		<id>https://help18.whiz.me/index.php?title=File:Sleep_and_learning_timeline_with_optimization_data.jpg&amp;diff=7533&amp;oldid=prev</id>
		<title>SuperMemoHelp: uploaded a new version of &amp;quot;File:Sleep and learning timeline with optimization data.jpg&amp;quot;</title>
		<link rel="alternate" type="text/html" href="https://help18.whiz.me/index.php?title=File:Sleep_and_learning_timeline_with_optimization_data.jpg&amp;diff=7533&amp;oldid=prev"/>
		<updated>2016-04-03T14:14:45Z</updated>

		<summary type="html">&lt;p&gt;uploaded a new version of &amp;quot;&lt;a href=&quot;/wiki/File:Sleep_and_learning_timeline_with_optimization_data.jpg&quot; title=&quot;File:Sleep and learning timeline with optimization data.jpg&quot;&gt;File:Sleep and learning timeline with optimization data.jpg&lt;/a&gt;&amp;quot;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 10:14, 3 April 2016&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-notice&quot; lang=&quot;en&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(No difference)&lt;/div&gt;
&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</summary>
		<author><name>SuperMemoHelp</name></author>
	</entry>
	<entry>
		<id>https://help18.whiz.me/index.php?title=File:Sleep_and_learning_timeline_with_optimization_data.jpg&amp;diff=4197&amp;oldid=prev</id>
		<title>SuperMemoHelp: uploaded a new version of &amp;quot;File:Sleep and learning timeline with optimization data.jpg&amp;quot;</title>
		<link rel="alternate" type="text/html" href="https://help18.whiz.me/index.php?title=File:Sleep_and_learning_timeline_with_optimization_data.jpg&amp;diff=4197&amp;oldid=prev"/>
		<updated>2013-10-22T16:15:47Z</updated>

		<summary type="html">&lt;p&gt;uploaded a new version of &amp;quot;&lt;a href=&quot;/wiki/File:Sleep_and_learning_timeline_with_optimization_data.jpg&quot; title=&quot;File:Sleep and learning timeline with optimization data.jpg&quot;&gt;File:Sleep and learning timeline with optimization data.jpg&lt;/a&gt;&amp;quot;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 12:15, 22 October 2013&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-notice&quot; lang=&quot;en&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(No difference)&lt;/div&gt;
&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</summary>
		<author><name>SuperMemoHelp</name></author>
	</entry>
	<entry>
		<id>https://help18.whiz.me/index.php?title=File:Sleep_and_learning_timeline_with_optimization_data.jpg&amp;diff=458&amp;oldid=prev</id>
		<title>WikiSysop: Sleep and repetitions timeline displaying repetitions blocks of the current collection (in red) and sleep blocks (in blue) with recomputed circadian approximations on the current data</title>
		<link rel="alternate" type="text/html" href="https://help18.whiz.me/index.php?title=File:Sleep_and_learning_timeline_with_optimization_data.jpg&amp;diff=458&amp;oldid=prev"/>
		<updated>2009-05-04T13:40:53Z</updated>

		<summary type="html">&lt;p&gt;Sleep and repetitions timeline displaying repetitions blocks of the current collection (in red) and sleep blocks (in blue) with recomputed circadian approximations on the current data&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;Sleep and repetitions timeline displaying repetitions blocks of the current collection (in red) and sleep blocks (in blue) with recomputed circadian approximations on the current data&lt;/div&gt;</summary>
		<author><name>WikiSysop</name></author>
	</entry>
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